package com.linkedin.databus.cluster;
/*
 *
 * Copyright 2013 LinkedIn Corp. All rights reserved
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
*/


/** Notifier callback interface for receiving signals to member from cluster **/
public interface DatabusClusterNotifier
{

    /**
     * Called when ownership is granted
     * @param partition
     */
	void onGainedPartitionOwnership(int partition);
	
	/**
	 * Called when ownership is revoked
	 * @param partition
	 */
	void onLostPartitionOwnership(int partition);
	
	/**
	 * Called when there is an error
	 * @param partition
	 */
	void onError(int partition);
	
	/**
	 * Called when the ownership is being transferred , e.g. when this member is disconnected from cluster 
	 * @param partition
	 */
	void onReset(int partition);
	
}
